Unit2HealthyLifestyleLearningAboutLanguageStructures教學(xué)設(shè)計-高中英語人教版選擇性

教學(xué)設(shè)計

課程基本信息學(xué)科英語（人教版）年級高二學(xué)期春季課題高中英語選擇性必修三Unit2LearningAboutLanguage:Structures教科書書名：高中英語選擇性必修第三冊（Unit2）出版社：人民教育出版社教學(xué)目標(biāo)Bytheendofthisperiod,studentswillbeableto:1.mastertheusageoftheinfinitiveasthesubject.2.usetherelevantgrammarflexiblyandauthenticallyinrealsituations.3.understandthedifferencebetweentheinfinitiveasthesubjectandthev.ingformasthesubject.教學(xué)內(nèi)容教學(xué)重點：1.Helpstudentsidentifytheusageoftheinfinitiveasthesubject.2.Guidestudentstousetheinfinitiveasthesubjecttoexpresstheirownideas.教學(xué)難點：1.Howtousetheinfinitiveasthesubjectinrealsituations.教學(xué)過程Activity1Lookatthefollowingsentencesandpayattentiontotheitalicizedinfinitives,andtelltheirmeaningsandfunctions.1.Tochangebadhabitsisnevereasy.2.Ittookthesurgeonthreehourstofinishmymother'slungsurgery.3.TojointhePeople'sLiberationArmy,itisrequiredformentoshaveofftheirbeards.4.Itwasnotpolitetodisturbyourneighborswithloudmusiclastnight.Summary1:動詞不定式在句中做主語，有時為了保持句子的平衡，避免頭重腳輕，常用it做形式主語，而真正的主語放在句子的末尾。比如第2、3、4例句。Activity2Fillintheblanksusingtherightformoftheword,andtrytochangeitintoanothersentencepattern.1.Itisimportant______Tomtogetthatjob.Itiskind______youtohelpmewithmyhomework.2.______(talk)withhimisagreatpleasure.→Itis_______________________________3.___________(help)othersisourduty.→______________________________4.IttookTom2hours______________________.(作準(zhǔn)備)Summary2不定式作主語，it做形式主語的常見結(jié)構(gòu)：1.Itis+adj.+(forsb)todo（修飾物的形容詞）(adj.:easy,difficult,fortable,pleasant,light,dangerous，tiresome,interesting,heavy,fit)eg:Itiseasyformetolearnhowtodrive.學(xué)開車對我來說很輕松。2.Itis+adj.+(ofsb)todo（修飾人品形容詞）(adj:kind,good,nice,wise,unwise,clever,silly,stupid,foolish,careless,rude,polite,naughty)eg:Itiscleverofyoutoapplyfortheposition.你申請這個職位真是明智的。3.Itis+n.+todosth(anhonour,ourduty,apity,ashame)eg:Itisourdutytotakecareofyou.照顧你是我們的責(zé)任。4.Ittakes/tooksbsometimetodosth.Ittakesmehalfanhourtodomyhousework.我花了半個小時做家務(wù)。Activity3parethetwosentencesbelowandtellthedifferenceinmeaning.Tolookafterchildrenisherjobtoday.她今天的工作是看孩子。Lookingafterchildrenisherwork.她的工作是照顧孩子。Summary3不定式作主語和動詞ing形式作主語的區(qū)別：動詞ing形式和不定式作主語,都是說明一個內(nèi)容。不定式通常表示一個將來的、具體的內(nèi)容;但是,動詞ing形式則表示一種經(jīng)常性的、習(xí)慣的或抽象的概念。Activity4Jointhewordstomakefullsentencesusingtheinfinitive.1.important/avoid/passivecigarettesmoking.____________________________________________________________2.willtake/nutritionspecialist/abalanceddietmenu/make/anhour/foryou._____________________________________________________________3.useful/turnto/fitnessconsultant/foradvice_____________________________________________________________4.illegal/dangerous/take/drugs_____________________________________________________________5.harmful/skipbreakfast/often__________________________________________________________________Summary4:1.單個不定式作主語，謂語動詞_______.2.不定式作主語時,可以用it作__________.Activity5pletetheconversationwiththecorrectformsofthephrasesinthebox.1.A:Hello,doctor.Iwanttoloseweight,butIjustcan'tseemtodoit.Whatcanyoudotohelpme?B:Well,first,it'snecessaryto______________whatyoueat.Cutoutallfattyfoodandsugarydrinks,andeatmorefruitandvegetables.2.A:Ireallyneedto________awaytoexercisemore.Icoulduseafitnessapp,butmyphone'sfull.B:Sodeleteafewfiles.I'msuretheappdoesn'ttakeupmuchspace.3A:Beforeexercising,alwaysdoafewwarmupsto___________________.B:Iknow.ButthenIalwaysfeeltootiredtocontinue!4.A:ShouldIgoforthepizzaorthefriedchicken?Ihate_____________likethese.Youknowwhat—I'mgoingtoeatboth!B:Wow！Don'teattoomuchjunkfoodyou'llgetfat.I'veactually_______________togoonadiet,soI'lljuststicktothefruitsalad.Activity6pletethesentencesusingthecorrectformsofthewords.1．__________(lean)outofthewindowisdangerous.2．__________(save)moneynowseemsimpossible.3．Itisanoffence__________________(drop)litterinthestreet.4．Itisstupidofyou_______________(write)downeverything(that)theteachersays.5．__________(say)isonethingandtodoisanother.6．Itseemedapity__________________(waste)somuchtime.7.Idon’tthink_____________________________（你問……是不禮貌的）howlongthein